package com.jml.juc;

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

class ShareResource {

    private int number = 1;
    private Lock lock = new ReentrantLock();
    private Condition c1 = lock.newCondition();
    private Condition c2 = lock.newCondition();
    private Condition c3 = lock.newCondition();

    public void print5() {
        lock.lock();
        try {
            while (number != 1) {
                c1.await();
            }
            for (int i = 0; i < 5; i++) {
                System.out.println(Thread.currentThread().getName() + "\t" + i);
            }
            number = 2;
            //唤醒C2线程
            c2.signal();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            lock.unlock();
        }
    }

    public void print10() {
        lock.lock();
        try {
            while (number != 2) {
                c2.await();
            }
            for (int i = 0; i < 10; i++) {
                System.out.println(Thread.currentThread().getName() + "\t" + i);
            }
            number = 3;
            //唤醒C3线程
            c3.signal();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            lock.unlock();
        }
    }

    public void print15() {
        lock.lock();
        try {
            while (number != 3) {
                c3.await();
            }
            for (int i = 0; i < 15; i++) {
                System.out.println(Thread.currentThread().getName() + "\t" + i);
            }
            number = 1;
            //唤醒C1线程
            c1.signal();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            lock.unlock();
        }
    }

}
 public class 三个线程准确唤醒SyncAndLock {

     public static void main(String[] args) {
         ShareResource shareResource = new ShareResource();
             new Thread(() -> {
                 for (int i = 0; i < 10; i++) {
                     shareResource.print5();
                 }
             }, "AA").start();
             new Thread(() -> {
                 for (int i = 0; i < 10; i++) {
                     shareResource.print10();
                 }
             }, "BB").start();
             new Thread(() -> {
                 for (int i = 0; i < 10; i++) {
                     shareResource.print15();
                 }
             }, "CC").start();

     }

 }
